Quote:
Originally Posted by chaley
You are diving deep into Qt event management. 
The "normal" reason for calling that method is that you are doing something on the GUI thread that takes a *long* time, or that your code is on a separate thread without normal event management. |
On Windows, if a process goes five seconds without reading the event queue, the OS will assume it's hung and make the window white out and offer to end the process. I am unsure how other OSes handle this though.